Product updated on 2020-08-26, RK Sport - RKS:18011000, 05-09 Mustang GTR Code Hood , *** NOTE: THIS HOOD SHOULD NOT BE USED WITH ANY TYPE OF GAS STRUT(S), LIFTING AND/OR HOLDING DEVICES. *** , RK Sport Ram Air Hoods are ducted to your factory air cleaner location. Add a cold air intake to make them fully functional. On some models you simply need to install a cold air intake or open up the top of your factory air box. ,